直升机旋翼/机身动力反共振隔振器的优化设计

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (15) : 115-121.

论文

李园园1，陈国平1，王轲1

作者信息 +

The optimization design of power anti-resonance isolator for helicopter rotor / fuselage

LI Yuanyuan1 CHEN Guoping1 WANG Ke1

Author information +

文章历史 +

摘要

为提高直升机旋翼/机身反共振隔振器的隔振效率，对直升机主减隔振系统进行了优化设计。通过灵敏度分析，确定了以前后柔性梁的厚度和配重的密度作为优化设计变量，接着采用遗传算法对隔振效率和配重动能进行优化，考虑到仿真模型直接调用优化算法的计算效率较低问题，建立了基于响应面方法的优化近似模型。结果表明：优化后模型的某一阶反共振频率与激励频率一致，配重振动加大，力传递率下降，隔振效率大幅度提高。优化设计提高了动力反共振隔振器的隔振性能，可以为直升机隔振器的设计提供一定的指导。

Abstract

To improve the isolation efficiency of helicopter rotor / fuselage anti-resonance isolator, optimization for the isolation system has been accomplished. The thickness of the front and rear flexible beam and counterweight density are determined as the design variables through sensitivity analysis, and then the isolation efficiency and counterweight kinetic energy are optimized using genetic algorithms. Taking into account the low computational efficiency that simulation models direct call the optimization algorithm problem, a surrogate model built by response surface is established. The results show that: A certain anti-resonance frequency is consistent with the excitation frequency, counterweight vibration increasing, force transmission rate decreasing and vibration isolation efficiency is greatly improved after optimization. Optimization design improves the power isolator anti-resonance isolation performance and can provide some guidance for the design of helicopter vibration isolators.

导出引用

李园园1，陈国平1，王轲1. 直升机旋翼/机身动力反共振隔振器的优化设计[J]. 振动与冲击, 2016, 35(15): 115-121

LI Yuanyuan1 CHEN Guoping1 WANG Ke1. The optimization design of power anti-resonance isolator for helicopter rotor / fuselage[J]. Journal of Vibration and Shock, 2016, 35(15): 115-121

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